rhsa-2019_0741
Vulnerability from csaf_redhat
Published
2019-04-10 20:29
Modified
2024-11-22 12:58
Summary
Red Hat Security Advisory: Istio-Proxy Security Update

Notes

Topic
An update for Istio-Proxy is now available for Red Hat OpenShift Service Mesh Tech Preview 0.9.0. Red Hat Product Security has rated this update as having a security impact of important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
Red Hat OpenShift Service Mesh is Red Hat's distribution of the Istio service mesh project, tailored for installation into an on-premise OpenShift Container Platform installation. Security fix(es): * istio-proxy: CVE-2019-9901 istio/envoy: Path traversal via URL Patch manipulation in HTTP/1.x header. (CVE-2019-9900) * istio-proxy: CVE-2019-9900 istio/envoy: Authorization bypass via null characters injection in HTTP/1.x (CVE-2019-9901) For more details about the security issue(s), including the impact, a CVSS score,acknowledgements, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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      "text": "Important"
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    "category": "csaf_security_advisory",
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    "distribution": {
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    "notes": [
      {
        "category": "summary",
        "text": "An update for Istio-Proxy is now available for Red Hat OpenShift Service Mesh Tech Preview 0.9.0.\n\nRed Hat Product Security has rated this update as having a security impact of\nimportant. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Red Hat OpenShift Service Mesh is Red Hat\u0027s distribution of the Istio service\nmesh project, tailored for installation into an on-premise OpenShift Container\nPlatform installation.\n\nSecurity fix(es):\n\n* istio-proxy: CVE-2019-9901 istio/envoy: Path traversal via URL Patch manipulation in HTTP/1.x header. (CVE-2019-9900)\n\n* istio-proxy: CVE-2019-9900 istio/envoy: Authorization bypass via null characters injection in HTTP/1.x (CVE-2019-9901)\n\nFor more details about the security issue(s), including the impact, a CVSS score,acknowledgements, and other related information, refer to the CVE page(s) listed in the References section.",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
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        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2019/rhsa-2019_0741.json"
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    ],
    "title": "Red Hat Security Advisory: Istio-Proxy Security Update",
    "tracking": {
      "current_release_date": "2024-11-22T12:58:17+00:00",
      "generator": {
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      "id": "RHSA-2019:0741",
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  "vulnerabilities": [
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        {
          "names": [
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          ]
        }
      ],
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      "cwe": {
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        "name": "Improper Input Validation"
      },
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          "text": "1698020"
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      "notes": [
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          "category": "description",
          "text": "A flaw was found in Envoy version 1.9.0 and older, where Envoy does not reject embedded zero characters (NUL, ASCII 0x0) when processing HTTP/1.x header values. This flaw allows remote attackers crafting header values containing embedded NUL characters to potentially bypass header matching rules, gaining access to unauthorized resources.",
          "title": "Vulnerability description"
        },
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          "text": "istio/envoy: Authorization bypass via null characters injection in HTTP/1.x",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
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          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1698020"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2019-9900",
          "url": "https://www.cve.org/CVERecord?id=CVE-2019-9900"
        },
        {
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          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-9900",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-9900"
        }
      ],
      "release_date": "2019-04-05T00:00:00+00:00",
      "remediations": [
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          "date": "2019-04-10T20:29:39+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
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          ],
          "restart_required": {
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        }
      ],
      "scores": [
        {
          "cvss_v3": {
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            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 8.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L",
            "version": "3.0"
          },
          "products": [
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            "7Server-RH7-RHOSSM-0:servicemesh-proxy-0:0.9.1-1.el7.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "istio/envoy: Authorization bypass via null characters injection in HTTP/1.x"
    },
    {
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          "names": [
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          ]
        }
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      "cve": "CVE-2019-9901",
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        "name": "Improper Input Validation"
      },
      "discovery_date": "2019-03-28T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1698025"
        }
      ],
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          "category": "description",
          "text": "A flaw was found in Envoy version 1.9.0 and older, where Envoy does not normalize HTTP URL paths. This flaw allows a remote attacker to craft a path with a relative path and to bypass access control. This issue results in a backend server with the ability to interpret the unnormalized path.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "istio/envoy: Path traversal via URL Patch manipulation in HTTP/1.x header",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
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      },
      "references": [
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2019-9901"
        },
        {
          "category": "external",
          "summary": "RHBZ#1698025",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1698025"
        },
        {
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          "summary": "https://www.cve.org/CVERecord?id=CVE-2019-9901",
          "url": "https://www.cve.org/CVERecord?id=CVE-2019-9901"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-9901",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-9901"
        }
      ],
      "release_date": "2019-04-05T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2019-04-10T20:29:39+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
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            "7Server-RH7-RHOSSM-0:servicemesh-proxy-0:0.9.1-1.el7.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2019:0741"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 8.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L",
            "version": "3.0"
          },
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "istio/envoy: Path traversal via URL Patch manipulation in HTTP/1.x header"
    }
  ]
}


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